Magneto-generator.



E. HELD. MAGNETO GENERATOR. APPUCATIQN FILED JUNE 2l i914.

1 ,200,939. 'Patented Oct. 10, 1916.

2 SHEETS-SHEET l.

@l fw lnyentor) Wtr`1esses I li i f Attorneys.

HEETZ- Patented Oct 2 SHEETS-S Z t f fig Y Witnesses Attorneys,

UNITED sirafrns Parser ortica.'

` EUGEN HELD, OF STUTTGART, GERMANY.

Massaro-GENERATOR.

To all whom t may concern:

Be it known that I, EUGEN HELD, a subject of the Emperor of Germany, residing at Stuttgart, Wurttemberg, Germany, have invented a new and useful Magneto- Generator, of which the following is a sped iiication.

The present invention relates to improvements in magneto-generators, and to that type of apparatus, in which generation of potential curves of special form in the induced part of electric machines is accomplished by means of' a two-pole field magnet.

T he main object, that is the generation of potential curves of special form in the induced part of electric machines, is attained by dividing either the pole frame or the armature, or both, longitudinally of the axis of the machine, and displacing the divided parts through a certain angle in the direction of the armature periphery.

lilith the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

In the drawings-Fi'gure 1 is an end view of a magneto generator machine constructed and arranged so that a special form of y potential. curve is produced1 in the present instance four points of maximum potential r revolution being the result. vFig. 2 lis plan view of the poles. Fig. 3 is a View showing the poles separated. Fig. is a agrammatic view showing the present ini'ention with the use of a two Isectioned armature. Fig. 5 shows a modified arrangement in'which the structures shown in Figs. 1 and 4 are combined. Fig. 6 is a view of still another modified form in which six. points of maximum potential are produced in the winding for each revolution. Fig. 7 :nows parts of Fig. 6 in plan. Fig. 8 shows the same parts separated.

Referring to the drawings, and more particularly to Figs. l, 2 and 3 thereof, the pole shoes of the eld magnets l and 2 are divided and eachl pole arm ends in pole ces 3 and 5. or 4 and 6, the shoes 3 and 44 Specification of Letters Patent.

Patented oct. io, raie.

Application filed June 2, 1914. Serial No. 842,422.

lying in the front plane and theshoes 5 und G lying in the rear plane.

A-A designates the neutral axis for thel unlike shoes 3 and 4 lying in the -front plane` yand BB is the neutral axis for the pole shoes 5 and 6 lying in the rear plam. The unlike pole shoe pair is displaced. relativel \r to the pole shoes ot' the rear plane through the angle X. Between the pole shoes runs a double T-shaped armature T. the stem 8 of which is provided with the inducing relatively to the same through the angle l;-

Instead of dividing thepole pieces several times in the longitudinal direction and relatively displacing the1n. the inducing part, the armature, can also be divided along its axis and the sections be relatively displaced.

In the arrangement shown in Fig. 4, between the unlike pole. pieces 10 and 1l, rotates a wound armature 12, which is divided in two. In the front plane is one part of the armature with the axis D'-D and in the rear plane is the other part of the armature 12, with the axis E-E. The axes are relatively displaced vthrough the angle y. The armature spool 13 surrounds the stems of both sections. ln this instance alsothe two parts of the armature may be connected or separated from each other and the armature can also be divided in the same way as to the' number of pole shoes. y

In the arrangement shown in Fig. 5, the structures as shown in Figs. 1 and 4 are combined. ln this case both the pole shoes of the field magnets 14 and the armature 15 are divided longitudinally of the axis and the sections are relatively displaced. The pole shoes are displaced throughthe angle g and the armature sections through the angle c. Then each like pole piece lying in one plane terminates in several pole shoes, it is possible ,to prnduce in a simple way a larger number of points of maximum potential per revolution, as is clearly evident from the foregoing description and diagram.

In the form shown in Figs. 6, 7 and 8, the

unlike pole pieces lying in the front plane, terminate 1n the pole shoes 16 and 17, andv the pole pieces lying in the rear plane tenniinate in the pole pieces i8 and 19. The

' neutral axes E-E and GG -are relatively displaced through 90 degrees. When a wound armature 2l is rotated between the pole shoes, six points of maximum potential are produced in the winding per revolution.

In view of the foregoing, it is evident that the generator can be vconstructed with the pole pieces having like coaxial portions at opposite sides of a plane at right angles with the axis of the armature shifted bodily at an angle relative to one another, or the armature may be provided with-like coaxial portions at opposite sides of the plane at right angles with the aXis of the armature shifted bodily at an angle relative to one another, or the pole pieces and armature can each be provided with portions as. above indicated. lVhat is claimed is:

l. In a generator, two opposite similarlyshaped pole pieges, and an armature rotatable between them, the pole pieces having like coaxial portions at opposite sides of a plane at right angles` with the axis of the armature shiftedfbodily at an acute angle relative to Vone another, the portions at one si/de of said plane being shaped similar to and spaced the same dlstance apart as the Laodeee armature shifted bodily at an acute angle relative to one another, the portions at one side of said plane beingshaped similar to and spaced the same distance apart as the portions at the opposite sides of said plane,

said portions having curveds faces extending through relatively large equalarcs, the armature having portions at opposite sides of said plane shifted bodily atan acute angle relative to one anotherl and of the same shape, said portionsof the armature having curved faces extending throughy relatively large equal ares.

In testimony that claim the foregoing as my own, I have hereto affixed my signa-,

ture in the presence of two witnesses.

'Y EUGEN HELD. A

Witnesses:

FRIDA Kir-mann, ROSA THALnAU-ica. 

